Andreas Metzler wrote: > No matter what, clearly FcPatternAddDouble() should not *segfault*, > shouldn't it?
It segfaults because the pattern is NULL and wmaker code doesn't check the pattern before calling FcPatternAddDouble. Doug Torrance made a commit upstream which should fix this issue (I haven't tested it): https://github.com/window-maker/wmaker/commit/b662d0827c7c10c197e11b583f8c371add01717a
